Moteurs de stockage

InnoDB

Supports transactions, row-level locking, foreign keys and encryption for tables

[ Variables | Mémoire tampon | État InnoDB ]

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2026-09-15 20:31:45 0x3160 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 44 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 23488 srv_active, 0 srv_shutdown, 553448 srv_idle
srv_master_thread log flush and writes: 576936
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 50742
OS WAIT ARRAY INFO: signal count 50066
RW-shared spins 32891, rounds 975270, OS waits 32295
RW-excl spins 116, rounds 2456, OS waits 80
RW-sx spins 9, rounds 270, OS waits 9
Spin rounds per wait: 29.65 RW-shared, 21.17 RW-excl, 30.00 RW-sx
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TRANSACTIONS
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Trx id counter 5136487
Purge done for trx's n:o < 5136487 undo n:o < 0 state: running
History list length 16
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 283590527201568, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283590527197400, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283590527193232, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
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FILE I/O
--------
I/O thread 0 state: native aio handle (insert buffer thread)
I/O thread 1 state: native aio handle (log thread)
I/O thread 2 state: native aio handle (read thread)
I/O thread 3 state: native aio handle (read thread)
I/O thread 4 state: native aio handle (read thread)
I/O thread 5 state: native aio handle (read thread)
I/O thread 6 state: native aio handle (write thread)
I/O thread 7 state: native aio handle (write thread)
I/O thread 8 state: native aio handle (write thread)
I/O thread 9 state: native aio handle (write thread)
Pending normal aio reads: [0, 0, 0, 0] , aio writes: [0, 0, 0, 0] ,
 ibuf aio reads:, log i/o's:, sync i/o's:
Pending flushes (fsync) log: 0; buffer pool: 0
178027 OS file reads, 275106 OS file writes, 196288 OS fsyncs
6.07 reads/s, 16384 avg bytes/read, 12.64 writes/s, 6.27 fsyncs/s
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INSERT BUFFER AND ADAPTIVE HASH INDEX
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Ibuf: size 1, free list len 0, seg size 2, 0 merges
merged operations:
 insert 0, delete mark 0, delete 0
discarded operations:
 insert 0, delete mark 0, delete 0
Hash table size 4441, node heap has 1 buffer(s)
Hash table size 4441, node heap has 0 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
Hash table size 4441, node heap has 0 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
7.75 hash searches/s, 29.45 non-hash searches/s
---
LOG
---
Log sequence number 45469455566
Log flushed up to   45469455546
Pages flushed up to 45469378722
Last checkpoint at  45469378336
0 pending log flushes, 0 pending chkp writes
116706 log i/o's done, 4.07 log i/o's/second
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BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 33554432
Dictionary memory allocated 247896
Buffer pool size   1003
Free buffers       737
Database pages     260
Old database pages 0
Modified db pages  104
Percent of dirty pages(LRU & free pages): 10.421
Max dirty pages percent: 75.000
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 17986, not young 492725
0.00 youngs/s, 0.00 non-youngs/s
Pages read 177925, created 677, written 130401
6.07 reads/s, 0.09 creates/s, 7.66 writes/s
Buffer pool hit rate 952 / 1000, young-making rate 0 / 1000 not 0 / 1000
Pages read ahead 0.00/s, evicted without access 0.00/s, Random read ahead 0.00/s
LRU len: 260, unzip_LRU len: 0
I/O sum[721]:cur[0], unzip sum[0]:cur[0]
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ROW OPERATIONS
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0 queries inside InnoDB, 0 queries in queue
0 read views open inside InnoDB
Process ID=5104, Main thread ID=6792, state: sleeping
Number of rows inserted 632, updated 26779, deleted 24, read 54147041
0.00 inserts/s, 3.14 updates/s, 0.00 deletes/s, 72.34 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 10180
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s
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END OF INNODB MONITOR OUTPUT
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